====================================================== WARNING: possible circular locking dependency detected 4.20.0+ #2 Not tainted ------------------------------------------------------ kworker/u4:7/8638 is trying to acquire lock: 0000000031f03b31 (nr_list_lock){+.-.}, at: spin_lock_bh include/linux/spinlock.h:334 [inline] 0000000031f03b31 (nr_list_lock){+.-.}, at: nr_remove_socket net/netrom/af_netrom.c:96 [inline] 0000000031f03b31 (nr_list_lock){+.-.}, at: nr_destroy_socket+0x96/0x6e0 net/netrom/af_netrom.c:264 but task is already holding lock: 000000009f2ad713 (slock-AF_NETROM){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline] 000000009f2ad713 (slock-AF_NETROM){+.-.}, at: nr_destroy_timer+0x32/0x90 net/netrom/af_netrom.c:247 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (slock-AF_NETROM){+.-.}: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] nr_find_socket+0x117/0x160 net/netrom/af_netrom.c:177 nr_rx_frame+0x38c/0x1d50 net/netrom/af_netrom.c:919 nr_loopback_timer+0x7b/0x170 net/netrom/nr_loopback.c:62 kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env call_timer_fn+0x254/0x900 kernel/time/timer.c:1325 kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' expire_timers kernel/time/timer.c:1362 [inline] __run_timers+0x6fc/0xd50 kernel/time/timer.c:1681 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 __do_softirq+0x30b/0xb11 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1b7/0x760 arch/x86/kernel/apic/apic.c:1062 cannot load conntrack support for proto=7 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 ip_setup_cork+0x549/0x880 net/ipv4/ip_output.c:1186 ip_make_skb+0x202/0x350 net/ipv4/ip_output.c:1527 udp_sendmsg+0x28b5/0x3a40 net/ipv4/udp.c:1173 cannot load conntrack support for proto=7 udpv6_sendmsg+0x1843/0x3550 net/ipv6/udp.c:1279 inet_sendmsg+0x1af/0x740 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x409/0x910 net/socket.c:2116 __sys_sendmmsg+0x246/0x6f0 net/socket.c:2211 __do_sys_sendmmsg net/socket.c:2240 [inline] __se_sys_sendmmsg net/socket.c:2237 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 kobject: 'loop3' (00000000f46a651e): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (nr_list_lock){+.-.}: lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:168 kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' spin_lock_bh include/linux/spinlock.h:334 [inline] nr_remove_socket net/netrom/af_netrom.c:96 [inline] nr_destroy_socket+0x96/0x6e0 net/netrom/af_netrom.c:264 nr_destroy_timer+0x42/0x90 net/netrom/af_netrom.c:249 call_timer_fn+0x254/0x900 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers+0x6fc/0xd50 kernel/time/timer.c:1681 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 __do_softirq+0x30b/0xb11 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1b7/0x760 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 rcu_dynticks_curr_cpu_in_eqs+0x2c/0x170 kernel/rcu/tree.c:302 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:932 cannot load conntrack support for proto=7 rcu_read_unlock include/linux/rcupdate.h:657 [inline] inet_twsk_purge+0x730/0x870 net/ipv4/inet_timewait_sock.c:298 dccp_v6_exit_batch+0x1a/0x20 net/dccp/ipv6.c:1116 ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x51d/0xb10 net/core/net_namespace.c:551 process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153 worker_thread+0x143/0x14a0 kernel/workqueue.c:2296 kthread+0x357/0x430 kernel/kthread.c:246 cannot load conntrack support for proto=7 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(slock-AF_NETROM); lock(nr_list_lock); lock(slock-AF_NETROM); lock(nr_list_lock); *** DEADLOCK *** 6 locks held by kworker/u4:7/8638: kobject: 'loop3' (00000000f46a651e): kobject_uevent_env #0: 00000000c6391c02 ((wq_completion)"%s""netns"){+.+.}, at: __write_once_size include/linux/compiler.h:218 [inline] #0: 00000000c6391c02 ((wq_completion)"%s""netns"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000c6391c02 ((wq_completion)"%s""netns"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000c6391c02 ((wq_completion)"%s""netns"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000c6391c02 ((wq_completion)"%s""netns"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000c6391c02 ((wq_completion)"%s""netns"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000c6391c02 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0xbc7/0x1ce0 kernel/workqueue.c:2124 #1: 00000000930c6017 (net_cleanup_work){+.+.}, at: process_one_work+0xc1d/0x1ce0 kernel/workqueue.c:2128 #2: 00000000ac46714d (pernet_ops_rwsem){++++}, at: cleanup_net+0x126/0xb10 net/core/net_namespace.c:518 #3: 000000000d407f5b (rcu_read_lock){....}, at: inet_twsk_purge+0x114/0x870 net/ipv4/inet_timewait_sock.c:269 #4: 000000008da5ea0b ((&sk->sk_timer)#2){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:171 [inline] #4: 000000008da5ea0b ((&sk->sk_timer)#2){+.-.}, at: call_timer_fn+0x1b4/0x900 kernel/time/timer.c:1315 kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' #5: 000000009f2ad713 (slock-AF_NETROM){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline] #5: 000000009f2ad713 (slock-AF_NETROM){+.-.}, at: nr_destroy_timer+0x32/0x90 net/netrom/af_netrom.c:247 stack backtrace: CPU: 0 PID: 8638 Comm: kworker/u4:7 Not tainted 4.20.0+ #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1224 cannot load conntrack support for proto=7 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2350 [inline] __lock_acquire+0x3014/0x4a30 kernel/locking/lockdep.c:3338 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:168 kobject: 'loop2' (000000000a227a80): kobject_uevent_env spin_lock_bh include/linux/spinlock.h:334 [inline] nr_remove_socket net/netrom/af_netrom.c:96 [inline] nr_destroy_socket+0x96/0x6e0 net/netrom/af_netrom.c:264 nr_destroy_timer+0x42/0x90 net/netrom/af_netrom.c:249 kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' call_timer_fn+0x254/0x900 kernel/time/timer.c:1325 cannot load conntrack support for proto=7 kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' expire_timers kernel/time/timer.c:1362 [inline] __run_timers+0x6fc/0xd50 kernel/time/timer.c:1681 kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env __do_softirq+0x30b/0xb11 kernel/softirq.c:292 kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1b7/0x760 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:rcu_dynticks_curr_cpu_in_eqs+0x2c/0x170 kernel/rcu/tree.c:302 Code: 89 e5 41 56 49 be 00 00 00 00 00 fc ff df 41 55 4c 8d 6d e0 41 54 49 c7 c4 c0 db 02 00 53 48 8d 5d 80 48 c1 eb 03 48 83 ec 68 <48> c7 45 80 b3 8a b5 41 4a 8d 04 33 48 c7 45 88 b6 7e 37 89 48 c7 RSP: 0018:ffff88806365f630 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: ffff888063656540 RBX: 1ffff1100c6cbec7 RCX: ffffffff8695ec0d RDX: 0000000000000000 RSI: ffffffff8695ed7b RDI: 0000000000000001 RBP: ffff88806365f6b8 R08: ffff888063656540 R09: ffffed1015cc5b90 R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: 000000000002dbc0 R13: ffff88806365f698 R14: dffffc0000000000 R15: dffffc0000000000 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:932 rcu_read_unlock include/linux/rcupdate.h:657 [inline] inet_twsk_purge+0x730/0x870 net/ipv4/inet_timewait_sock.c:298 dccp_v6_exit_batch+0x1a/0x20 net/dccp/ipv6.c:1116 ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x51d/0xb10 net/core/net_namespace.c:551 process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153 worker_thread+0x143/0x14a0 kernel/workqueue.c:2296 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' cannot load conntrack support for proto=7 kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' cannot load conntrack support for proto=7 kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env cannot load conntrack support for proto=7 kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' cannot load conntrack support for proto=7 kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kernel msg: ebtables bug: please report to author: Wrong len argument kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kernel msg: ebtables bug: please report to author: Wrong len argument kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kernel msg: ebtables bug: please report to author: Wrong len argument kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env connlabel_mt_check: 10 callbacks suppressed cannot load conntrack support for proto=7 kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kernel msg: ebtables bug: please report to author: Entries_size never zero cannot load conntrack support for proto=7 kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' cannot load conntrack support for proto=7 kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' cannot load conntrack support for proto=7 cannot load conntrack support for proto=7 kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' cannot load conntrack support for proto=7 cannot load conntrack support for proto=7 cannot load conntrack support for proto=7 kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' cannot load conntrack support for proto=7 kernel msg: ebtables bug: please report to author: entries_size too small cannot load conntrack support for proto=7 kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kernel msg: ebtables bug: please report to author: Wrong len argument kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: Wrong len argument kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: Wrong len argument kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kernel msg: ebtables bug: please report to author: Entries_size never zero kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: Entries_size never zero kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kernel msg: ebtables bug: please report to author: entries_size too small kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop1' (00000000d826d47d): kobject_uevent_env kobject: 'loop1' (00000000d826d47d): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kernel msg: ebtables bug: please report to author: Entries_size never zero kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kernel msg: ebtables bug: please report to author: Entries_size never zero kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000f46a651e): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000000a227a80): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env CPU: 0 PID: 27237 Comm: syz-executor4 Not tainted 4.20.0+ #2 kernel msg: ebtables bug: please report to author: entries_size too small Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x15 lib/fault-inject.c:149 kernel msg: ebtables bug: please report to author: entries_size too small __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1578 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2b1/0x700 mm/slab.c:3552 kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' sock_alloc_inode+0x1d/0x260 net/socket.c:244 alloc_inode+0x66/0x190 fs/inode.c:210 new_inode_pseudo+0x71/0x1b0 fs/inode.c:906 kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env sock_alloc+0x41/0x270 net/socket.c:547 __sock_create+0x173/0x930 net/socket.c:1241 kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' sock_create net/socket.c:1317 [inline] __sys_socket+0x106/0x260 net/socket.c:1347 __do_sys_socket net/socket.c:1356 [inline] __se_sys_socket net/socket.c:1354 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1354 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 kernel msg: ebtables bug: please report to author: Wrong len argument kernel msg: ebtables bug: please report to author: entries_size too small entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'loop3' (00000000f46a651e): kobject_uevent_env RIP: 0033:0x457ec9 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f56ece05c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f56ece05c90 RCX: 0000000000457ec9 RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000018 kobject: 'loop3' (00000000f46a651e): fill_kobj_path: path = '/devices/virtual/block/loop3' RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 kobject: 'loop0' (00000000633e5fe4): kobject_uevent_env R10: 0000000000000000 R11: 0000000000000246 R12: 00007f56ece066d4 kobject: 'loop0' (00000000633e5fe4): fill_kobj_path: path = '/devices/virtual/block/loop0' R13: 00000000004c6074 R14: 00000000004dad68 R15: 0000000000000003 socket: no more sockets kernel msg: ebtables bug: please report to author: entries_size too small kernel msg: ebtables bug: please report to author: entries_size too small kobject: 'loop4' (0000000043a28ff0): kobject_uevent_env kobject: 'loop4' (0000000043a28ff0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' kernel msg: ebtables bug: please report to author: Wrong len argument kobject: 'loop5' (00000000a0b994c9): kobject_uevent_env kernel msg: ebtables bug: please report to author: entries_size too small kernel msg: ebtables bug: please report to author: Wrong len argument FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (00000000a0b994c9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000000a227a80): kobject_uevent_env kobject: 'loop2' (000000000a227a80): fill_kobj_path: path = '/devices/virtual/block/loop2' CPU: 1 PID: 27269 Comm: syz-executor4 Not tainted 4.20.0+ #2 kobject: 'loop3' (00000000f46a651e): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113